Prank ennis



(N'o Model.)

F. ENNIS; SPRING HINGE.

n Patented Apr. 25, 1893.

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UNITED STATES PATENT OEEICE.

FRANK ENNIS, OF SYRAOUSE, NEW YORK, ASSIGNOR TO E. C. STEARNS & OO., OFSAME PLACE.

SPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 495,966, dated April25, 1893.

Application filed May 16, 1892. Serial No. 433,084. (No model.)

To all whom it may concern,.-

Be it known that I, FRANK ENNIS, a citizen of the United States,residing at Syracuse, in the county of Onondaga and State of New York,have invented new and useful Improvements in Spring-Hinges, of which thefollowing is a specification.

This invention relates to that class of spring hinges which hold thedoor yieldingly in a closed position.

The object of my invention is to simplify the construction of the springhinge and to provide a reliable support for the coil spring, so that thelatter will always be retained in its proper position.

In the accompanying drawings, Figure 1 is a front elevation of Inyimproved spring hinge. Fig. 2 is a sectional elevation of the same, thesection being taken through the pintles. Figs. 3 and 4 are horizontalsections in lines x-m and y-y, Fig. 1. Fig. 5 is a front elevation ofthe leaves of the hinge-detached from each other. Fig. 6 is aperspective view of the core bar which retains the leaves and coilspring in place.

Like letters of reference refer to like parts in the several figures.

A B represent the leaves of the hinge, one of which is secured to thedoor and the other to the jamb or door frame in the usual Inanner. Eachof the leaves is provided on one side with outwardly projecting lugs cc', the lugs of both leaves being pivotally connected. The lug c of eachleaf is provided with an inwardly projecting pintle d and the lug c ofthe same leaf is provided with a socket or opening e which extendsentirely through the same and is arranged axially in line with thepintle d. Both leaves of the hinge are exactly alike, and in connectingthem to each other the pintle d of one leaf enters the socket in theother leaf from the outer side upon moving the leaves lengthwise uponeach other.

F represents a core bar whereby the leaves are prevented from movinglengthwise upon each other in the direction of their pintles, after thetwo parts of the hinge have been connected together. The ends of thiscore bar are arranged in the inner ends ot' the sockets in the lugs c,and the bar is provided near its ends with collars f which bear againstthe i11- ner sides of the socket lugs c, thereby preventing both ofthese lugs from disengaging themselves from the pintles. Each of thesocket lugs c is provided with a notch g in its side to permit ofinserting the ends of the core bar into the sockets of these lugs.

H represents a coil spring whereby the door is yieldingly held in aclosed position. This spring surrounds the core bar and bears with itsend coils against annular shoulders h 011 the lugs c which shouldersform the contracted inner portions of these lugs. .The ends of the coilspring proj ect laterally and form arms h', which rest in seatsj in theleaves A B. The notches in the inner sides of the socket lugs c, throughwhich the ends of the core bar are inserted, cause the end coils of thespring to be unsupported adjacent to the notches. For this reason thecollars f, near the ends of the core bar, are made of the same diameteras the contracted inner portions ofthe socketlugsc, thereby forminguniform supports for the end coils of the spring. The core bar is alsoprovided at its middle with a collar 7c which supports the central coilsof the spring and assists in retaining the same in alignment.

I claim as my invention` The combination with the hinge leaves, each ofwhich is provided with a socket lug having in its side a notch for theintroduction of a core-bar, and a lug having a pintle,thepintle of oneleaf engaging in the socket of the other leaf, of a core-bar arrangedwith its ends in the sockets of said lugs andprovided near its ends withcollars which bear against the inner sides of the socket lugs, and acoil spring surrounding the socket lugs and core-bar and engaging withits ends against the leaves, substantially as set forth.

Witness my hand this 13th day of May, 1892.

FRANK ENNIS.

Witnesses:

EDITH BOTTOMLEY, EDWARD WILHELM.

